补强平台订单工具区说明语义标签

resources/views/admin/platform_orders/index.blade.php

@@ -1197,7 +1197,7 @@
     @endphp
 
     <div class="tool-grid" data-role="po-tools-grid" aria-label="平台订单工具区网格">
-        <div class="muted muted-xs mb-10" data-role="po-tools-grid-intro">当前工具区承载导出、批量治理与失败标记清理，请先缩小筛选范围再执行动作。</div>
+        <div class="muted muted-xs mb-10" data-role="po-tools-grid-intro" aria-label="平台订单工具区说明">当前工具区承载导出、批量治理与失败标记清理，请先缩小筛选范围再执行动作。</div>
     <div class="tool-group focus-box" data-role="po-tools-group-export" aria-label="平台订单导出工具组">
         <div class="tool-group-title">导出</div>
         <form method="get" action="/admin/platform-orders/export" class="mb-0">

tests/Feature/AdminPlatformOrderIndexToolGridIntroShouldHaveAriaLabelTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderIndexToolGridIntroShouldHaveAriaLabelTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_platform_orders_tool_grid_intro_should_have_aria_label(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $res = $this->get('/admin/platform-orders');
+        $res->assertOk();
+
+        $html = (string) $res->getContent();
+        $this->assertStringContainsString('data-role="po-tools-grid-intro" aria-label="平台订单工具区说明"', $html);
+    }
+}